User Guide

46
SONIC · BLISS CHARM
For example, the sum of a hearing instrument with a
rating of 2 (M2/T2) and a telephone with a rating of 3
(M3/T3) would result in a combined rating of 5. Accord-
ing to the standard, any combined rating that equals at
least 5 would provide “normal use”; a combined rating
of 6 or greater would indicate “excellent performance.”
The immunity of all Sonic hearing instrument models
covered by these instructions for use is at least
M2/T2. The equipment performance measurements,
categories and system classifications are based
upon the best information available but Sonic cannot
guarantee that all users will be satisfied.